USB (Universal Serial Bus) equipment remote sharing method and system for virtual machine

Abstract

The invention provides a USB (Universal Serial Bus) equipment remote sharing method and a system for a virtual machine. The method comprises the following steps: a client host machine sends an IP message carrying a USB equipment remote sharing request message to a server host machine, the server host machine generates a virtual USB equipment allowing remote sharing, a USB equipment driving module of the server host machine converts a USB equipment remote access request sent by a server virtual machine into a URB (Universal Request Block) and transmits the URB to a virtual host controller of the server host machine, the virtual host controller of the server host machine packages the URB into an IP (internet protocol) message to be transmitted to a virtual USB equipment driving module of a client, and the virtual USB equipment driving module of the client host machine establishes a URB according to the content of the IP message and sends the URB to a host controller of the client for driving. The USB equipment remote sharing method and the system for the virtual machine are adopted to be capable of improving the flexibility of the USB equipment remote sharing for the virtual machine.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a virtual machine-oriented universal serial bus (Universal Serial Bus, referred to as USB) device remote sharing method and system. Background technique [0002] With the development of Internet technology and applications, data centers represented by cloud computing and virtual machines have become the execution environment for future software operation and data management. For example, Google has launched Cloud Printer, Amazon (Amazon) has launched a virtual machine-based network user environment and the like. [0003] A virtual machine (Virtual Machine, VM for short) is a complete computer system running in a completely isolated environment with complete hardware system functions simulated by software. Virtual machines have good isolation, partition, encapsulation, self-management and other characteristics, and can provide good support for network virtualization. ...

AI Technical Summary

Problems solved by technology

For example, Windows computer operating system (Windows) can be used for file sharing. This sharing method is only at the file system level, and cannot realize device sharing, so remote USB devices cannot be shared and controlled.

For example, virtual USB technology (USB anyware) can also be used to achieve sharing. USB anyware is a USB-to-Ethernet hub with an Ethernet interface, which breaks the traditional USB protocol transmission distance limit of only 5 meters, making the host computer in the local area network Both can access remote USB peripheral devices, but each access point requires the user to purchase a USB anyware hardware device, so the flexibility of remote sharing of USB devices is poor and increases the cost

For example, USB sharing based on the Remote Desktop Protocol (Remote Desktop Protocol, RDP) can also be used, the function of which is similar to the disk drive mapping function of Windows Remote Desktop, the system includes a server (Server) and a workstation (Workstation), The workstation is installed on the host with the USB device actually plugged in, and the server is installed on the remote host that is logged in. Once you log in to the remote host, the local USB device will be displayed. Using RDP-based USB sharing, the number of USB device connections is limited, and Remote desktop connection is required, and it is not applicable to some applications that cannot log in to the remote host, so the flexibility of remote sharing of USB devices is poor, and the security is poor

[0007] In short, the existing remote sharing method, the flexibility of remote sharing of USB devices for virtual machines is poor

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